Dump-car.



P. SEABERG- DUMP GAR.

APPLICATION FILED JULY 7, 1909.

1,055,423. Patented Mar. 11, 1913.

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nun 'a. APPLIOATIOI mpg 1mm Patented mar. 11,1913;

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F.8EABBRG.

DUMP GAR.

APPLIOATIUF FILED JULY'I, 1909.

1,055,423, Patented Mar. 11, 1913.

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P. SEABERG.

I DUMP GAR. 7 APPLICATION FILED JULY 7,1809.

. 1,055,423. Patentgd Mar. 11,1913.

6 BKEETSAHEET 4,

r. SBABERG. DUMP GAR. APPLICATION FILED JULY 7,1909.

Pate nt ed Mar. 11,1913.

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UNi D STATES PATENT OFFICE.

" FREDERICK SEABERG, or crushes; ILLINOISLASSIGNOR, BY MESNEassreumnurs, to

I NATIONAL DUMP can COMPANY, or CHICAGO; I LINoIs'A CORPORATION orMAINE;

DUMP-GAR.

Specification of Letters Patent. Application filed July *7, 1909. SerialNo. 506,335.

To all whom, it may concern:

Be 1t known that I, FREDERICK SEABERG,

' a citizen of the United States, residing at Chicago, in the county ofCook and State of Illinois, have invented certain new and usefulImprovements in Dump-Cars, of which the following is a specification.

The object of my invention is to provide an improved operating mechanismfor the doors of dump cars.

It is more especially designed for use in" ,the type ofcars known as orecars, n which i the end walls of the car slope downwardly toward themiddle f the cars length where the dump doors are situated. f

My improvements relate particularly 'to ore cars which discharge theirload centrally between the rails, and in which there are two.cloorshinged near the outer edgesof the Y load, no strain occurs in the chainand operating mechanism. I

-Other objects will be made apparent in the following'description andclaims, taken in connection wlth the accompanvmg draw- 'with mimprovements applied thereto.

door operatingmechanism.

- Fig.

'ings, in which F gure 1 s a side elevation or an ore car Fig. 2 is anend elevation of the same. Fig. 3 is; a plan V1 W of the same... Fig. 4;1s a cross section on the line 4-4 of Fig. 1.

is an end elevation in detail of the Fig. 6 is a cross section. at oneend of same, on line 6-6 of Fig. 7 is a side elevation of the dooroperating mechanism.

In the drawings, usual sloping end walls 11 which terminate Fig; 5

' at the bottom of the car near its center in the vertical walls 12. Theside walls '13 are provided with an inwardly sloping sheet producing aconverging effect- 11 which serves as a strengthening member for the!frame and also as a means for in the lower 'i'iiteriorppait' of the carbody. The sloping sheets 11 terminate 111 a vertical portion 15 and bars21.

the car body 10 ha-s the forming the lateral walls of the. central dis-Patented Mar. 11,1913. 2

charge opening. The vertical walls 12 have their lower edges cut to a'form which produces two portions sloping downwai'dly to a common centralpoint 16 which forms.

their lowermost extremity.

The side-sheets 13 are attached at their lower edgesto. the'side' sills.17 A strengthening sheet 18 is interposed between the sheet 14 and theside sill 17 The angle bar 19 is fixed to the sheet 18. A small'sheet'20'of irregular outline is attached to the angle bar 19 and serves as ameans of attachment for the guide bar 21. The oppothe vertical wall 12near the center of the 'site end of the guide bar 21 is attached to car.This completes a brief description of the car yframe'to which myimprovements are attached.

The dump doors 22 are made of rectangular form, preferably of steel,with strengthening ribs 23 fixed to their under surfaces. The doors-areprovided with hinges 24 by which they are pivoted to a fixed hinge piece25 on the car body- A pin 26joins the two hinged parts. The, two doors22 swing outwardly' to dump the. load and their lower and inner edgescome together at the center when closed. i

The doors 22 are operated in their closing movements by movable members27, which are preferably hollow shafts, and may be made of heavy ironpipe. They bear upon the under surfaces of the ribs 23 and slideinwardly and outwardly under said ribs.

They are supported by the sloping guide bars 21 and slide upon said barsin their door operating movements. They are placed in a position atright angles to the ribs 23 The weight of the doors 22 and of thecontents of the car .which rest upon them is transmitted through saidribs 23 to said members or shafts 27 and by them the load istransferredto the guide bars 21.

The relative positions and slopes of the doors 22 and of the bars 21enable the members or shafts 27 to close the doors when the said shafts27 are pushed inwardly or toward the center of the car. The inwardmrywementof the shafts 27' is effected by links 28, 29, 28 and 29* whichareconnected One of the shaft segmental sheave 31 having a "pivotal iconnection'at each end of said link. The er shaft 2"?" is connected atone end to another sheave segment 30 by'the link 29 having a, pivotalconnection at each end. The mental sheaves 3Iiand 31 are fixed to the t3.2 at one end thereof and are oppo- The pin connec disposed thereon.

is 36* and 31 are placed in opposite di at relations relative to theaxis of the smart 32.

nected the and opposite to that described abet a link 23 to an arin 30with a pin connection at each end of said link. The other shaft 27 isalso connected opposite end to that described above to not-her arm 31with a pivotal pin conn at. each end of link 29". The arms l 31*" ed tothe shaft and are y di posed thereon. 'Tl'iey are fixed nd of said shaftopposite to that the segmental sheaves 3G and 3,1 The pin connections 38and 31 in opposite dlftlflO'L'I'Etl relation the axis-of the shaft-32Lhe shafts 2' is connected to the and the arm 30 both of which its sideof the shaft 32. Any nee; of said shaft 32 will therefore .af-

" iultaneously, and a parallel movement of ft 2? will be produced. The.other .4 is simiiarly connected to the shaft of the segmental sheave 31and l 'i on the same side of shaft t segmcntal sheave 30 and my rotativemovement of the lie seen to cause movements of $31 and said movementswill be or away from the center of inner extremities of the movementsnei'nhi or shafts 27, when they slide he upper surfaces of the guidebars 3 parts of said surfaces which have a o erent slope. This differentslope is such to prevent a tendency of the shafts 27 to slide hack downthe inclined bars and thus allow "he doors to open. When a shaft 27 isting upon this part of the guide bar, the st. tin caused by the load isremoved from all of door operating mechanism, except the shaft 27'.

The links 29 and 29 are given an upward as hand. at 29 topermit them toclear the ends of the links 23 and 28 The links 28 and 23" and 29 and29* lie outside of the guide bars 21, and theends or eyes 28, 29, & c.,serve to prevent the shafts 27 becoming displaced from their properpositions on the U .Lidc bars 21. I

The shaft 32 is supported 1n bearings 33 iixed to the guide bars 21. Theshaft 32 project s a considerable distancev be nd the bearings 33, andthe segmental s eaves 30 Gne of the shafts 527 is also conboth ends theshaft E27 similarly and and 31 are mounted on said shaft at its extreme.end, and in a position outside the links 29, 28, 810., and the otherparts of the mechanism. The arms 30" and 31 are also placed at theextremity of the shaft 32 at its other end and lie outside the otherparts of the mechanism. This arrangement prevents interference of theparts and permits a very advantageous disposal of them for thepurpose-desired.

The segmental sheaves 30 and 31 are adapted to receive the chain 34' intheir grooves. One end 35 of the chain 34 is fixed to the segmentalsheave 30 by means of an eye bolt 36 which is placed in a hole 37 in thebottom of the groove, A. small part of thechain 34 is wound upon thesegmental sheave 30 when the doors are closed, as shown in Fig. 2. Therelative positions of the chain and the segmental sheave 30 when thedoors are open are shown in Fig. 5. The

other end of the chain 34 is fixed to the segmental sheave 31 by theU-shaped, link or clevis 33 and pin 39. The segmental sheave 31 occupiesa larger part of the circle of which it is a segmentthan' is occupied bythe segmental sheave 30, for the reason that its angular relation to thechain requires it. The end of the chain is given a turn around the endor corner 40 of the sheave rim, before it is fastened thereto, in orderto give greater security to said fastening and also to permit asextensive contact as possible of the chain in the groove.

The chain 34 is wound aroundthe drum at about the middle of the lengthof said chain. The drum 41 is preferably provided with a helical groove42. into which the chain is wound. The drum 41 is fixed upon the shaft43, supported at one end by a hearing 44 carried by a bracket 45 fixedto the car body. At the other end the shaft 43 is suitably supported bythe bearing 46 fixed to the car frame. A hand lever 47 is looselymounted on said shaft 43 at its outer end,

and is adapted to actuate the said shaft by means 'of a ratchet wheel 48and pawl 49. A. detent wheel 50 and detent 51 are provided forpreventing a back movement while lever 47 is taking a return stroke. Thedetent 51 is s pported by a pin 52 when not engaged \Vll'ililjhe detentwheel 50.

In operatingy invention to dump theload, the lever 7 is given anoscillatory movement by t e operator, the detent 51 having been firstturned back upon the pin 52 and out of engagementwith wheel 50. Thepawl. 49 is placed in engagementwith the wheel 48 in such manner that alefthand movement of the lever 47 will move the ratchet wheels and theshaft-'43 to the left, as viewed in Fig. 2. This movement will betransmitted by the shaft 43 to the winding drum 41, and the chain 34Wlll be caused to exert a; pull uponthe segmental in Figs. 2, it

messes 28* will be pulled to the right, and they Will cause the othershaft 27 to, be moved outvardly and upon th'e sloping portion of itsguide bar 21. Little or no effort is now needed on the part of theoperator with the hand lever 4?, to cause the shafts 2? to slide downthe guide bars 21 and the doors to open Widely. To close the doors, theoperator first reverses the pawl -19 and swings the detent 51 intoengagement- With the ratchet wheel 50. The lever 47 is then given anoscillatory movement and the shaft 43 is rotated in the oppositedirection, was

ing the drum 4:1 to exert a pull upon the lower part of the chain 3 LThe pull of the chain thus effected is transmitted to the segmentalsheaye3l. This causes a reversal of the movements above described,

and the shafts 27 are moved inwardly and upwardly along the slopingguide bars 21, piishing the doors 22 to a closed position.-

I claim: i 1'. In a car of the class described, a dump door operatingmechanismcomprising a shaft having oppositely disposed arms movement bythe operator, the. detent 51 adapted to move a door operating memberup-an. inclinedguide member, the arms on the other side being adapted tomove another dborf opera-ting member up another incl ned guide member.

2. Ina car of the class described, a dump door operating mechanismcomprising an 'operat-1ng shaft having segmental chain sheaves attachedthereto at one end, one of said segmental sheaves being connected tomeans for operating a dump door, the other of said segmental sheavesbeing connected to means for operating another door.

In a car of The class describecha dump door operating mechanismcomprising a winding drum for a-chain, drum engaging said chain midwaybetween its ends,

the ends of the chain. being attached to segments of. sheaves fixed to ashaft, and links.

ally attached to said sheaves and con- 3 (5 door supporting andoperating members. p

T acar of the described, a door m 13 operating lamina v res opp lydisposed segmental LL con and having-an end of lied to each, said-chain'beiiiig chanism comprising shaft -j closed position,

actuated by a winding drum, and each sheave'belng connected to aseparate door operating means. i

. In a car of the class described, a dump door operating mechanismcomprising an 7 operating shaft having segments of chain sheavesoppositely disposed at one end of said shaft. onefof said sheaves beingconnected to a door supporting operating memher by a link, and the otherof said sheaves being connected to another door supporting and operatingmember by another link.

6. In a car of the class described, a dump.

door operating mechanism comprising door supporting andoperatingmembers, a shi t parallel to said members and pro-vided'ioppositely disposed arms at one end of said shaft and oppositelydisposed arms integral with segmental chain sheaves at the other end ofsaid shaft, the arms on one side of said shaft being connected toone'o-f said door supporting and ,operating members and the arms on theother side of said shaft bein g connected to the other door supportingand operating member.

71 In a car of the class described, a dump door operating mechanismcofnpgising a'n operating shaft having segments of sheaves oppositelydisposed at one end of said'sl aft, and arms oppositely disposed at-;the othe end of said shaft in a parallel relation to said sheaves, oneof said segments and one of said arms on the same side of said shaft.beingeach connected by a link to a door operating means, the other ofsaid segments 0 and the other of said arms on the other side of saidshaft being each connected by a link to the operating means of anotherdoor.

8. In a. car of the class described, dump v doors hinged at their outeredges and meet- 1 5 ing at the center of the car, door supportingoperating members, guide bars for said members sloping upwardly towardthe meeting edges of the doors and having a portion disposed at adifferent angle at the upper end of the sloping portion for holding thedoors closed, a shaft haying arms connected to said door'supporting andoperating members by links, segmental sheaves integral With said arms, achain engaging said sheaves, a Winding drum for operating said chain, ashaft for'said winding drum, and

a hand lever and, ratchet mechanism for said shaft.

9. In a car of he class described, a car body having sloping'wallsleading to a central discharge opening, dump doors hinged at the outeredges of said opening and meet.-

ing at the center thereof, door supporting and operating members, guidebars sloping upwardly toward the meeting edges of the doors and having aportion sloping at a different angle at the upper end of the i forholding said doors in a connecting links attached 0; a

to said operating and supporting members, a-shaft provided at eachendwith arms ,to

, which said links are pivotally attached, and segmental sheaves on saidshaft integral Correction in 'Letters Patent- No. 1,055,423.

with the arms at one end of said shaft, a

Winding chain on. said'sheaves, and I'n'eans for operating said chain. y

10. In a .car of the class described,'dump doors, a Winding drum-, .alever of the first-'- class, chain connectlons'bet'ween said drum andthe opposite ends of said lever, operating mechanism for each of saiddoors, and

connections extending from the opposite ends of said lever to-saidoperating mecha-' nisms, v v 11. Ina car having'a discharge opening,

dump doors hinged-adjacent the sides of.

said opening, a shaft mounted at one side of said opening, oppositelydisposed-armsrigid with said shaft, a supporting and operating memberfor each of said'.doors, links having operative engagement with said.arms and said members,an d means for rotating said shaft andsimultaneously operating'said doors through forces transmitted throughsaid links by compression andten-a sion respectively.

12.;A dump 'car having a centr structed bottom opening, oppositelyWinging doors hinged at the sides of the saidopening, 'a bodily movable'shaft beneath each door for operat-ing and supporting thesame, means forsupportingsaid shafts, and means for simultaneously moving the shaftsaway from the center of the car to open the doors, and forsimultaneouslymoving'them Patent Oflice.

[seen] I n v;

\ Signed and sealed this1 5th day of April, A. D., 1913.

toward the center of the car to. the

' doors.

13. A dump car having a central unob same, meanesfor supporting saidshafts, and

means located at one side of said opening for simultaneously moving theshafts away from the center of-the car to open the doors.

the center ofthe car to close the doors, 14 Adump car having a centralunobstructed bottom opening, oppositely swinging doors -hinged;atthesides of the said opening, a bodily movable shaft beneath eachdoorforoperating and supporting the and for'simultaneously moving them towardsame, means for supporting said shafts, and '55 means located at oneside of said opening and connected to said bodily movables hafts foroperatingthe'same.

.115. In a dump car, the combination, with a pair; of doors, ofdoorop'eratin-g mechanism comprising a, lever,--a pair, of laterallymovable shafts upon which the doors" rest gfreely,- means operatively.connecting the shafts to the lever, means through which the shafts actupon the doors, and means for actuating the said mechanism.

- In testimony whereof, I have subscribed my name.

v FREDERICK'SEABERG. Witnesses:

WALTER A. Soo'rr,

Anna L. WAL10N.;

It is hereby certified that in Letters Patent No. 1,055,423, grantedMarch 11 1913, upon the application of Frederick Sea-berg, of Chicago,Illinois, for an improvement in v .Dump- Cars, an error appears in theprinted specification requiring' correction as follows:' Page 3, strikeout line 38, and insert the-words 'mbumd'memn, flz e arms ononedsid ebeing; and that the said Letters-Patent should be read with 1 thiscorrection therein that i the same may conform to the record of the casein the c. o. BILLINGS,

Acting Commissioner of Patents.

to said operating and supporting members, a-shaft provided at eachendwith arms ,to

, which said links are pivotally attached, and segmental sheaves on saidshaft integral Correction in 'Letters Patent- No. 1,055,423.

with the arms at one end of said shaft, a

Winding chain on. said'sheaves, and I'n'eans for operating said chain. y

10. In a .car of the class described,'dump doors, a Winding drum-, .alever of the first-'- class, chain connectlons'bet'ween said drum andthe opposite ends of said lever, operating mechanism for each of saiddoors, and

connections extending from the opposite ends of said lever to-saidoperating mecha-' nisms, v v 11. Ina car having'a discharge opening,

dump doors hinged-adjacent the sides of.

said opening, a shaft mounted at one side of said opening, oppositelydisposed-armsrigid with said shaft, a supporting and operating memberfor each of said'.doors, links having operative engagement with said.arms and said members,an d means for rotating said shaft andsimultaneously operating'said doors through forces transmitted throughsaid links by compression andten-a sion respectively.

12.;A dump 'car having a centr structed bottom opening, oppositelyWinging doors hinged at the sides of the saidopening, 'a bodily movable'shaft beneath each door for operat-ing and supporting thesame, means forsupportingsaid shafts, and means for simultaneously moving the shaftsaway from the center of the car to open the doors, and forsimultaneouslymoving'them Patent Oflice.

[seen] I n v;

\ Signed and sealed this1 5th day of April, A. D., 1913.

toward the center of the car to. the

' doors.

13. A dump car having a central unob same, meanesfor supporting saidshafts, and

means located at one side of said opening for simultaneously moving theshafts away from the center of-the car to open the doors.

the center ofthe car to close the doors, 14 Adump car having a centralunobstructed bottom opening, oppositely swinging doors -hinged;atthesides of the said opening, a bodily movable shaft beneath eachdoorforoperating and supporting the and for'simultaneously moving them towardsame, means for supporting said shafts, and '55 means located at oneside of said opening and connected to said bodily movables hafts foroperatingthe'same.

.115. In a dump car, the combination, with a pair; of doors, ofdoorop'eratin-g mechanism comprising a, lever,--a pair, of laterallymovable shafts upon which the doors" rest gfreely,- means operatively.connecting the shafts to the lever, means through which the shafts actupon the doors, and means for actuating the said mechanism.

- In testimony whereof, I have subscribed my name.

v FREDERICK'SEABERG. Witnesses:

WALTER A. Soo'rr,

Anna L. WAL10N.;

It is hereby certified that in Letters Patent No. 1,055,423, grantedMarch 11 1913, upon the application of Frederick Sea-berg, of Chicago,Illinois, for an improvement in v .Dump- Cars, an error appears in theprinted specification requiring' correction as follows:' Page 3, strikeout line 38, and insert the-words 'mbumd'memn, flz e arms ononedsid ebeing; and that the said Letters-Patent should be read with 1 thiscorrection therein that i the same may conform to the record of the casein the c. o. BILLINGS,

Acting Commissioner of Patents.

